According to the "astronaut Code of Professional Responsibility," astronauts are expected to adhere to "a constant commitment to honorable behavior," but NASA won't go much further than that.

《宇航员职业责任守则》规定，宇航员应该时刻谨记对“光荣行事的承诺”，但是NASA不会做更严格具体的要求。

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It takes an overt commitment to maintain a constant presence, to engage in true conversations and honest interactions, and sometimes to take a leap of faith to jump into chance encounters.

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Martino added that that commitment requires resources and "a constant spirit of sacrifice" on the part of Italians.

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